He's a normal approximation to find the probability of the indicate a number of voters in this case assume that 148 eligible voters aged from 18 to 24 are randomly selected. suppose a previous study...

He's a normal approximation to find the probability of the indicate a number of voters in this case assume that 148 eligible voters aged from 18 to 24 are randomly selected. suppose a  previous study shows that among eligible voters aged 18 to 24, 22% of them voted. find the probability that fewer  than 39 voted.